<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script>
    let uname = prompt('请输入姓名')
    let age =  prompt('请输入年龄')
    let gender =  prompt('请输入性别')
  
  
   
    document.write(uname,age,gender)
  </script>
</body>
</html>